Ruminations from a jaded old guy

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Claim: Air pollution linked to blood vessel damage in healthy young adults

First, in the actual study, the researchers only conclude the following (note highlighted text):

So their actual conclusion is a lot smaller than their headline. But even that is an obvious false claim.

If the little bit of PM2.5 inhaled from outdoor/indoor air damaged the blood vessels of health young men, what would massive amounts of PM2.5 do to sick, old men?

Believe it or not, there are many oxygen users who smoke. Despite that each cigarette delivers PM2.5 at a rate anywhere from 10,000 to 40,000 times greater than breathing typical air, and that sick people are supposedly more vulnerable to the alleged effects of PM2.5 (according to EPA), smoking is not known to cause them any short-term harm.

The “results” of the new study just don’t jibe with the real world. That they don’t is not surprising considering that the lead researcher is C. Arden Pope, one of EPA’s main cheerleaders for the bogus notion that PM2.5 kills.